Quote:
Originally Posted by Vekke
Yes I also meant that popular sizes. Usually this means tires that are normally used as factory size tires on cars. There 3-5 popular sizes on different size cars. Other sizes are then scaled like you confirmed...............
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I know that in some places in Europe, only tires approved by the vehicle manufacturer are allowed to be applied - even as replacements.
That is definitely not true in the US. There are whole lines of tires - 30 to 40 different sizes, that are designed off a couple of prototypes - and that was what I was referring to.
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It is pretty universal that any OE tire is unique to itself. The vehicle manufacturer decides what the performance specs are supposed to be, and the tire manufacturer complies. If the tire manufacturer refuses to go along, te vehicle manufacturer will find some tire manufacturer who will.